Guinea pigs are highly social animals with specific space, social, and dietary requirements that are frequently unmet, resulting in widespread welfare compromise in captivity.
Guinea pig welfare failures are widespread and stem primarily from inadequate information at point of sale and undersized commercial housing. These social animals require companionship, ideally a same-sex pair or small group, and develop chronic stress when isolated. Cages marketed specifically for guinea pigs are frequently far below welfare-recommended minimum sizes, leaving owners unwittingly providing inadequate housing. Fresh vegetables and vitamin C supplementation are daily necessities, not optional extras. The simplicity of meeting guinea pig needs makes the prevalence of welfare compromise particularly avoidable with better education and regulation.